at85c51snd3 ATMEL Corporation, at85c51snd3 Datasheet - Page 220

• Manufacturer Part Number: at85c51snd3
• Description: At85c51snd3 Single-chip Digital Audio Decoder - Encoder With Usb 2.0 Interface
• Manufacturer: ATMEL Corporation

Registers
220
AT85C51SND3B
Figure 113. SIO Controller Interrupt System
Table 243. SCON Register
SCON (0.91h) – SIO Control Register
Reset Value = 0000 0000b
Number
SIOEN
6-5
1-0
Bit
7
7
4
3
2
SINT.0
SINT.1
SINT.2
SINT.3
SINT.4
EOTI
SINT.5
OEI
FEI
PEI
RI
TI
Mnemonic Description
PMOD1:0
GBIT1:0
PMOD1
SIOEN
PBEN
STOP
DLEN
Bit
6
SIO Enable Bit
Set to enable the Serial Input/Output port.
Clear to disable the Serial Input/Output port.
Parity Mode Bits
Refer to Table 238 for information on parity mode
Parity Bit Enable Bit
Set to enable parity generation according to PMOD1:0 bits.
Clear to disable parity generation.
Stop Bit Number
Set to enable generation of 2 stop bits.
Clear to enable generation of 1 stop bit.
Data Length Bit
Set to enable generation of 7 data bits.
Clear to enable generation of 8 data bits.
Guard Bit Number
Number of guard bits (from 0 to 3) transmitted after the last stop bit in
transmission mode.
PMOD0
EOTIE
5
SIEN.1
SIEN.3
SIEN.5
PEIE
TIE
PBEN
SIEN.0
SIEN.2
OEIE
SIEN.4
FEIE
RIE
4
STOP
3
DLEN
2
IEN0.4
ES
GBIT1
1
7632D–MP3–01/07
SIO
Interrupt
Request
GBIT0
0